I take the opposite stance, i only buy from 3rd parties.
The official store is such a poor setup, the carenado mooney is broken and due to how long it takes for msoft/asobo to check and publish it still is snd will be for a while.
In contrast the MB399/jabiru have had several patches through 3rd party sites and are regularly updated/fixed.
With an organised community folder and email push notifications im at no disadvantage , i domt plan on using the official store at all - its not fit for purpose imo.
*this post from carenado just today justifies the above, what a mess- https://www.facebook.com/129839447092878/posts/3514914435252012/